There are certain keys that cannot be copied out there, like high-security keys, that are designed to be almost impossible to duplicate. These keys usually have unique designs and require special equipment to replicate. Some even come with patents and legal protections to prevent unauthorized copying.
The locksmith should be able to produce a patented key which is very difficult to copy, although not impossible, Keys such as security keys with a mechanical element in them are much more difficult to copy than ones without. Basically, there is no key in the world that would be impossible to copy.
“Do Not Duplicate” (DND) keys are keys stamped with these words which implies that copying them is not allowed. While this does deter some people from duplicating the keys, they are not exactly a foolproof security feature.
Basically, almost any key that you currently have can be duplicated using the key cutting process. This is particularly useful when you need a spare key for a family member, a friend or even someone you've engaged to look after your pets and your garden when you're away on holiday.
If you are having trouble getting your key copied at your preferred superstore or local hardware store it is probably because you have an I/C key, a locksmith-only key, a high security key, a DND key, an old key, or a key with an unusual bow.
Home Depot employees often ignore the DND key stamp and copy these keys. Additionally, the key machines that are in Home Depot and Lowes ignore the DND stamp as well and will copy a DND key. Most locksmiths will now copy these keys too since they are so common and easily duplicated.
A restricted key can take different shapes and forms depending on the level of restriction. Most of these are only able to be copied by the lock manufacturer. These keys usually require some level of ID card identification in order to be copied.
The primary key is the minimum set of traits that distinguishes any row of a table. It cannot have NULL and duplicate values. The primary key is used to add integrity to the table.
Stamping Keys with a “Do Not Duplicate” Stamp
You may have seen keys with the words “DO NOT DUPLICATE” stamped on them. In fact, we have these stamps at our own shop. Upon request, we can stamp key copies with this text.
Some keys are stamped with “do not copy” or “do not duplicate”. This is often used as a deterrent to prevent you from copying the key elsewhere. But unless it's part of a registered master key system, these words do not give it legal protection.
Names, titles, short phrases, or expressions
Also exempt: Names. Titles. Short phrases or expressions.
Summary. Anyone can duplicate a key that says do not duplicate so long as it is a commonly found key type. If you desire keys that cannot be copied, then you will need to move into a lock system that utilizes restricted keyways.
The "do not duplicate" label on door lock keys is often used to prevent unauthorized duplication of the keys by non-authorized personnel. This is done primarily for security purposes in order to protect homeowners or businesses who share key access with different people.
Home Depot offers key duplication services for a range of standard keys, with prices typically between $4 and $10 depending on the key blank. They can duplicate house keys, business keys, and padlock keys from popular brands like Yale, Master Lock, and American Lock.
You can define keys which allow duplicate values. However, do not allow duplicates on primary keys as the value of a record's primary key must be unique. When you use duplicate keys, be aware that there is a limit on the number of times you can specify the same value for an individual key.
Patented keys take key security a step further. They are protected by patents, making it illegal for anyone other than the authorised manufacturer to produce duplicates. Patented keys are commonly found in restricted systems such as high-security locks, safes, and proprietary equipment.
By storing your car keys, fob or card in an aluminium tin (even grandma's old biscuit tins), or a special signal blocking box, the signal between the car and key is blocked. This means thieves can't intercept it and clone a new one. If you're out and about, then a Faraday pouch is your best friend.
Certain hardware stores won't reproduce a key stamped with a do not copy message. Nevertheless, locksmiths will usually make copies for you. They're more conscious that the request on the key is just that, a request and not a mandate.
A key that is patent protected is illegal to copy unless you have special permission. This is designed to keep the key from being freely cut and limits access to the lock it works in.
Patented cylinders are the solution. Users who install a patented cylinder acquire an ownership card with their purchase which is essential to make new copies.
Which two keys cant open any door: The answer to this question is Don"key" and Mon"key". EXPLANATION: The definition of a key is that it's a small piece of shaped metal with incisions cut to fit the wards of a particular lock, which is inserted into a lock and turned to open or close it.